25356940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2551}}^1$

素因数の和:2638

約数の個数: 48

約数和(自身を含む): 61737984

約数和(自身を除く): 36381044

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 2551, 4970, 5102, 9940, 10204, 12755, 17857, 25510, 35714, 51020, 71428, 89285, 178570, 181121, 357140, 362242, 724484, 905605, 1267847, 1811210, 2535694, 3622420, 5071388, 6339235, 12678470, 25356940]

約数ペア:

[(1, 25356940), (2, 12678470), (4, 6339235), (5, 5071388), (7, 3622420), (10, 2535694), (14, 1811210), (20, 1267847), (28, 905605), (35, 724484), (70, 362242), (71, 357140), (140, 181121), (142, 178570), (284, 89285), (355, 71428), (497, 51020), (710, 35714), (994, 25510), (1420, 17857), (1988, 12755), (2485, 10204), (2551, 9940), (4970, 5102)]